From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2010-10-27T21:01:24+09:00
Subject: Re: Extraction of single subarrays from multidimensional array

On Wed, Oct 27, 2010 at 1:10 PM, Maurizio Cirilli <mauricirl@gmail.com> wrote:
> Sorry for my bad explanation, in my case I actually know how many
> columns are in md-array
> i.e how many sub-arrays are to be extracted because I read them as
> backtraslated aminocids
> from a gene database but this number can change from case to case. So
> to make my code of
> general use I have to take in consideration this "variable" otherways
> I have to change by hand
> this number every time I run the program. In the example I provided
> this number is 3 but this
> number of subarrays can vary. In this respect I wrote "unknown"
> dimension.
> Sorry again for misunderstanding.

The question is: what do you do with those subarrays? What's common in
both cases?
When you take a look at that answer you can come up with a way of
making a generalized algorithm that can work for different sizes, and
I bet that you don't need to generate a local variable for each
subarray.
For example, say that you have to take each subarray, join the strings
together comma separated and pass it to a method for further
processing:

ss = [ .... your array of arrays ...]

ss.each {|subarray| process_subarray(subarray.join(",")) }

See? You don't need to know there were 2, 3 or 20 subarrays, or even
the length of each subarray.

So, take a look at the requirement from a higher perspective and you
will get to a generalized algorithm.

Jesus.